package com.spring.dao;

import com.spring.pojo.Department;
import com.spring.pojo.Employee;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

//员工dao
@Repository
public class EmployeeDao {
    //    模拟数据库中的数据
    private static Map<Integer, Employee> employeeMap = null;
    //    员工有所属的部门
    @Autowired
    private DepartmentDao departmentDao;//要将这个注入过来，dao层要添加注解应该添加@Repository，这个属性就可以使用注解@Autowired

    static {
        employeeMap = new HashMap<Integer, Employee>();//创建一个员工表
        employeeMap.put(1001, new Employee(1001, "A", "1278001208@qq.com", 0, new Department(101, "教学部")));
        employeeMap.put(1002, new Employee(1002, "B", "1278002208@qq.com", 1, new Department(102, "市场部")));
        employeeMap.put(1003, new Employee(1003, "C", "1278003208@qq.com", 0, new Department(103, "教研部")));
        employeeMap.put(1004, new Employee(1004, "D", "1278004208@qq.com", 1, new Department(104, "运营部")));
        employeeMap.put(1005, new Employee(1005, "E", "1278004208@qq.com", 0, new Department(105, "后勤部")));
    }

    //    主键自增
    private static Integer initId = 1006;

    //    增加一个员工
    public void save(Employee employee) {
        if (employee.getId() == null) {
            employee.setId(initId++);
        }
        employee.setDepartment(departmentDao.getDepartmentById(employee.getDepartment().getId()));
        employeeMap.put(employee.getId(), employee);
    }

    //    查询全部员工信息
    public Collection<Employee> getAll() {
        return employeeMap.values();
    }

    //    通过id查询员工
    public Employee getEmployeeById(Integer id) {
        return employeeMap.get(id);
    }

    //    删除员工通过id
    public void delete(Integer id) {
        employeeMap.remove(id);

    }


}
